Cobnelius callahan



(No Model.)

C. CALLAHAN.

DISCHARGE PIPE POR HOSE.

Patented Oct. l0.- 1882 N. wenns. mwunwgmpnaf. wmmmn. v4 c.

rre STATES A'rnNr Price.

CORNELIUS CALLAHAN, OF CHELSEA, MASS., ASSIGNOR 'IO THE AMERICAN FIRE HOSE MANUFACTURINGCOMPANY, OF SAME PLACE.

DISCHARGE=PIPE FOR HOSE.

SPECIFICATION forming part of Letters Patent No. 265,573, dated. October 10, 1882.

Application tiled May 25, 1882.

To all whom it may concern:

Be it known that I, CORNELIUS UALLAHAN, ot' Chelsea, county of Suiiolk, State of Massachusetts, have invented an Improvement in Discharge-Pipes for Hose, of which the following description, in connection with the accompanying drawings, is a specification.

This invention is an improvement on United States Patent No. 219,505, to which reference to may be had. That patent shows a valve to control or it may be cut off the discharge of water from the pipe; but as constructed the force of the water acts to crowd the valve away from its seat, and the greater the pressx5 ure the greater the tendencyT of the valve to leali. ln this my invention I have so made the valve that the pressure of the water is made effective to aid in forcing the valve to its seat, and by so doing I have been enabled 2o to form a valve which will not leak.

Figure 1 represents in side elevation a discharge-pipe for tire-department use provided with my improvement. Fig. 2 is an enlarged sectional detail thereof; and Fig. 3 is a section z5 on the line .fr rv, Fig. 2.

The pipe A, which is and maybe ot' any usual construction, has at its lower end an internallythreaded metal ring, B, which, as herein shown, receives the externally and internally threaded ring C. Inside this ring C is screwed the ring D, which constitutes the valve-seat, a portion of which is extended into the center ofthe ring, as shown at a. The valve is shown as a ring, b, having a portion,

b2, extended toward the center ofthe said ring.

The side ofthe ring D constituting the valveseat is slotted, as shown in Fig. 2, to receivethe pin 2 of the handle d. The handle d is connected with au annulus, E, screw-threaded internally at its upper end, where it engages a threaded collar, e, resting on a shoulder of the ring D, thus keeping the annulus E on the said ring.

The ring or coupling-section Cr, of usual con- 4 5 struction, is that which will be connected with the length of hose, (not shown,) and through which water will be supplied to the dischargepipe. A packing is introduced at h between the ring b and the end of section G.

(No model.)

When the valve is in the position shown in 5o Figs. 2 and 3 water is free to pass through the valve and valve-seat, as designated by the arrows; but by carrying the handle d to the opposite side of the ring D, so thatthe pin 2 meets the shoulder 8 (see Fig. 3) at the other end of 55 the slot in the ring D, the portion bzof the valve will be moved from beneath the portion a. ot' the valve-seat, and will be placed in position to completely close the passage through the valve. Any intermediate position of the valve 6o will more or less arrest the Vquantity ot' water to be discharged. The force of the water against the under side of the valve portion b2 acts to crowd the valve against its seat, the pressure of the valve against its seat being in accordance with the pressure of the water. I have arranged the valve near the receiving end of the discharge-pipe, for by such arrangement I am enabled to gain very important advantages, chiet'of which is that the water, the 7c current of which is broken up as it passes the valve, is furnished a space and allowed time in which to again collect in a solid movingmass as it arrives'at the nozzle n, whereas it` the valve were near the nozzle the water could 7 5 not be discharged with a full, steady stream, but would spray and break.

l. A hose-nozzle having the threaded ring C and hose-coupling section G, with the annu- 8O lar valve-seat l) a between them, combined with the valve-ring b b2 seated by the pressnre of water thereupon, substantially as, shown and described.

2. The valve-ring b, having the portion b2 85 and an operating-handle, combined with the snperposed and surrounding annulus D a, in which the valve-ring and portion b2 are seated by the pressure of water, the ring C, coupling G, and ring E, substantially as and for the 9o purpose set forth.

In testimony whereofl have signed my name to this specification in the presence of two subscribin g witnesses.

CORNELIUS GALLAHAN.

Witnesses:

G. W. GREGORY, B. J NoYEs. 

